package j1;

interface I1{
    void f1();
}

interface I2{
    String toString();
}

//class C1 implements I2{
//
//}
class Fa{
    public void f1(){
        System.out.println(111);
    }
}

class C1 extends Fa implements I1{

}

public class J1 {
    public static void main(String[] args) {
        new C1().f1();
    }

}
